Guardian 20kVA 50Hz 3-Phase Standby Generator

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Guardian 20kVA 50Hz 3-Phase Standby Generator Features and Benefits

Provides essential circuit power protection for your home, ensuring the necessities remain powered during an outage. The most affordable automatic standby generator on the market offers protection for half the cost of central air conditioning.

True Power™ Technology delivers best-in-class power quality with less than 5 percent total harmonic distortion for clean, smooth operation of sensitive electronics and appliances.

Generac G-Force Engine
Generac's G-Force Engine is a purpose-built, pressure-lubricated engine capable of handling the rigors of generator use, resulting in power that’s more reliable and requires less routine maintenance than any competitive engine. Learn more about the G-Force Engine

24/7/365 Customer Support
Power outages don’t always occur during normal working hours. That’s why
Generac’s customer care call center—right here in Wisconsin—provides support any time of day or night, all year long. Generac is standing by 24/7, every minute of every day, to answer your questions.

Easy Installation
With re-engineered connection points, and composite mounting pad that eliminates the need for a poured concrete base (unless specified by local codes), the Guardian Series 20kVA generator is easy to install.

Certified for 18" Installation to the Home
Third-party certified to NFPA standards to be installed as close as 18” from the home’s exterior wall, provided it is located away from doors, windows, and fresh-air intakes, and unless otherwise directed by local codes.

Mobile Link™ Compatible
Take advantage of Generac’s Mobile Link cellular remote monitoring system and check on your generator’s status using your computer, tablet or smartphone, even when you are away. Sold separately.

Tool-less Fuel Conversion
Switch between natural gas and LP fuel in the field in a few seconds, without the need for any tools.

Rated for Operation in Areas with Low Natural Gas Pressure
In areas with low natural gas pressure, the Guardian Series 13kVA generator can operate on natural gas pressures of only 3.5” of water column—significantly lower than published numbers for competitive standby generator systems.

Home Backup
Generator Videos

Learn more about how Generac home backup generators work, and hear what some of our customers have to say.

How Does a Home Backup Generator Work?

It starts and stops automatically, and never needs refueling. This video explains how and why.

Generac Customer Testimonial Compilation

Hear what several Generac customers have to say about their home backup generators.

7 out of 10 Customers Choose Generac

Find out why so many homeowners choose a Generac home backup generator over competitive brands.

The Generac Promise

Peace of mind.

And the power to live.

The Generac Promise means that our 9 – 22 kilowatt Guardian® Series home backup generators will give you peace of mind and the power to live. It means that we engineer and build them here in America*. It means we stand behind them with a strong 5-year limited warranty. We promise to continue to innovate, like with our new Mobile Link™ WiFi monitoring system, so you’ll know the status of your generator, no matter where you are. And if you ever need to call, we’re standing by 24/7, every minute of every day, ready to pick up the phone right here in Wisconsin.